张磊

This profile gathers the share dealings of 张磊 across 5 companies, led by 石头科技, 安控科技 and ST美晨. We count 8 filings; the first trade dates from 23 July 2021 and the latest from 26 November 2024.

On the open market, the record shows 3 purchases worth €49k and 5 sales worth €465k. Netting one side against the other leaves €416k of net selling. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. So far in 2024, the count stands at 1 purchase and 2 sales.

Half of the purchases are above €15k and half below. Clusters matter here: 2 out of 3 purchases overlapped with buying by a colleague within 30 days. Such overlaps are known as a cluster signal: distinct people reaching the same decision at about the same time. After 3 purchases with a full 90-day history, the hit rate stands at 67% and the median 90-day move at +9.2%. They describe history only and say nothing certain about the share price ahead.

The record was last updated on 26 November 2024 with an open-market purchase (€21k) in 上海银行. The median gap between trade and publication is zero days: most filings appear on the same day. This delay matters because a trade only becomes useful information once it is public. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Every figure here comes from the filings published by SSE / SZSE (CSRC) and describes the past, not future prices; it is not investment advice.